电力电缆故障探测方法研究  

Study of Power Cable Fault Detection Methods

作　　者：任艳阳[1] 任艳霞 

机构地区：[1]中南大学物理科学与技术学院,湖南长沙410083 [2]国核工程有限公司,上海200233

出　　处：《电工电气》2011年第4期14-18,共5页Electrotechnics Electric

摘　　要：随着大量电力电缆的投运,相应的电缆故障率也随着使用年限上升,列举了电缆故障探测的传统方法及其缺点,介绍了电缆故障探测的新方法,对中性点在不同接地方式下产生单相接地故障进行了仿真分析,利用Bd小波对故障信号进行处理,并通过算例证明了该方法具有很高的测距精度。Following great quantity of power cables being put into operation, relevant cable faults rate rises with use years rising. This paper listed traditional methods of cable detection and their disadvantages. Introduction was made to the new method for cable faults detection and simulation was carried out for single phase grounding fault generated under neutral point in different grounding methods. Bd wavelet was used to process fault signals and calculation examples proved that this method was with very high distance detection accuracy.

关 键 词：电缆故障 测距 小波变换 

分 类 号：TM755[电气工程—电力系统及自动化]